Flexible display module and electronic device comprising the same

ABSTRACT

An electronic device including a flexible display module, the flexible display module including a flexible display panel, the flexible display panel having a display portion, a panel bending portion and a display pad portion, a flexible circuit board connected with the display pad portion and disposed at a rear surface of the flexible display panel and an electrostatic shielding member covering the panel bending portion of the flexible display panel.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of the Korean PatentApplication No. 10-2018-0161387 filed in the Republic of Korea on Dec.13, 2018, which is hereby incorporated by reference in its entirety forall purposes as if fully set forth herein.

BACKGROUND Technical Field

The present disclosure relates to a flexible display module (unit) andan electronic device comprising the same.

Discussion of the Related Art

Generally, an electronic device such as a television, a monitor, anotebook computer, a smart phone, a tablet computer, an electronic pad,a wearable device, a watch phone, a mobile information device, anavigation, or a vehicle control display device is realized in amultimedia player type having complex function of an image displaying,photo shooting or video recording, audio or video file playing, game, orbroadcasting receiving.

The electronic device can include a housing, a flexible display moduleaccommodated in the housing and configured to include a flexible displaypanel, a flexible circuit board connected with the flexible displaypanel, and a cover window configured to cover the flexible displaymodule. The flexible display panel has a bending portion which is bentto reduce a bezel width of the electronic device, and the flexiblecircuit board can be disposed in a rear surface of the flexible displaymodule and can be electrically connected with a pad portion prepared inthe bending portion of the flexible display panel.

However, in case of the general electronic device, the flexible displaypanel and circuits can be damaged by static electricity introducedthrough a space between the flexible display module and the housing.

SUMMARY

Through various test results for static electricity in an electronicdevice, the inventors have recognized that a panel bending portion of aflexible display panel and circuit devices disposed in the periphery ofthe panel bending portion are damaged by static electricity introducedthrough a speaker hole prepared in a cover window. Accordingly, theinventors have invented a flexible display module having a new structurecapable of preventing a panel bending portion of a flexible displaypanel and circuit devices disposed in the periphery of the panel bendingportion from being damaged by static electricity introduced through aspeaker hole and an electronic device comprising the same.

The present disclosure has been made in view of the above problems, andit is an object of the present disclosure to provide a flexible displaymodule capable of preventing a flexible display panel from being damagedby static electricity, and an electronic device comprising the same.

According to an embodiment, the present disclosure provides flexibledisplay module comprising a flexible display panel including a displayportion, a panel bending portion and a display pad portion, a flexiblecircuit board connected with the display pad portion and disposed in arear surface of the flexible display panel, and an electrostaticshielding member configured to cover the panel bending portion of theflexible display panel.

In accordance with an aspect of the present disclosure, the above andother objects can be accomplished by the provision of a flexible displaymodule comprising a flexible display panel including a display portion,a panel bending portion and a display pad portion; a flexible circuitboard connected with the display pad portion and disposed in a rearsurface of the flexible display panel; and an electrostatic shieldingmember configured to cover (e.g., covers) the panel bending portion ofthe flexible display panel.

In accordance with another aspect of the present disclosure, there isprovided an electronic device comprising a cover window having an openportion; a flexible display module combined with (e.g., bonded to,attached to, etc.) the cover window; and a housing configured to support(e.g., supports) the cover window and to accommodate the flexibledisplay module, wherein the flexible display module comprises a flexibledisplay panel including a display portion, a panel bending portion and adisplay pad portion; a flexible circuit board connected with the displaypad portion and disposed in a rear surface of the flexible displaypanel; and an electrostatic shielding member configured to cover (e.g.,covers) the panel bending portion of the flexible display panel.

According to one or more embodiments of the present disclosure, it ispossible to minimize or prevent the flexible display panel from beingdamaged by static electricity.

In addition to the objects of the present disclosure as mentioned above,additional objects of the present disclosure will be clearly understoodby those skilled in the art from the following description of thepresent disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, that can be included to provide a furtherunderstanding of the disclosure and are incorporated in and constitute apart of this application, illustrate embodiments of the disclosure andtogether with the description serve to explain various principles of thedisclosure.

FIG. 1 is a plane view illustrating an electronic device according toone embodiment of the present disclosure;

FIG. 2 is a cross-sectional view taken along line I-I′ of FIG. 1;

FIG. 3 is a cross-sectional view taken along line II-IF of FIG. 1;

FIG. 4 illustrates a rear surface of a flexible display module shown inFIG. 3;

FIGS. 5A to 5C illustrate embodiments of an electrostatic shieldingmember according to the present disclosure;

FIG. 6 illustrates a rear surface of a flexible display module shown inFIG. 3;

FIG. 7 is a cross-sectional view taken along line of FIG. 6;

FIG. 8 is a plane view illustrating the cover member shown in FIG. 6;

FIG. 9 is a cross sectional view illustrating the cover member shown inFIG. 8.

FIG. 10 is a plane view illustrating a modified embodiment of the covermember shown in FIGS. 8 and 9;

FIG. 11 is a rear view illustrating a flexible display module so as toexplain another embodiment of the cover member shown in FIG. 6; and

FIG. 12 illustrates the cover member shown in FIG. 11.

DETAILED DESCRIPTION OF THE DISCLOSURE

Advantages and features of the present disclosure, and implementationmethods thereof will be clarified through following embodimentsdescribed with reference to the accompanying drawings. The presentdisclosure can, however, be embodied in different forms and should notbe construed as limited to the embodiments set forth herein. Rather,these embodiments are provided so that this disclosure will be thoroughand complete, and will fully convey the scope of the present disclosureto those skilled in the art. Further, the present disclosure is onlydefined by scopes of claims.

A shape, a size, a ratio, an angle, and a number disclosed in thedrawings for describing embodiments of the present disclosure are merelyan example, and thus, the present disclosure is not limited to theillustrated details. Like reference numerals refer to like elementsthroughout the specification. In the following description, when thedetailed description of the relevant known function or configuration isdetermined to unnecessarily obscure the important point of the presentdisclosure, the detailed description will be omitted.

In a case where ‘comprise’, ‘have’, and ‘include’ described in thepresent specification are used, another part can be added unless ‘only-’is used. The terms of a singular form can include plural forms unlessreferred to the contrary.

In construing an element, the element is construed as including an errorrange although there is no explicit description.

In describing a position relationship, for example, when the positionrelationship is described as ‘upon-’, ‘above-’, ‘below-’, and ‘nextto-’, one or more portions can be arranged between two other portionsunless ‘just’ or ‘direct’ is used.

In describing a time relationship, for example, when the temporal orderis described as ‘after-’, ‘subsequent-’, ‘next-’, and ‘before-’, a casewhich is not continuous can be included unless ‘just’ or ‘direct’ isused.

It will be understood that, although the terms “first”, “second”, etc.can be used herein to describe various elements, these elements shouldnot be limited by these terms. These terms are only used to distinguishone element from another. For example, a first element could be termed asecond element, and, similarly, a second element could be termed a firstelement, without departing from the scope of the present disclosure.

It should be understood that the term “at least one” includes allcombinations related with any one item. For example, “at least one amonga first element, a second element and a third element” can include allcombinations of one or more elements selected from the first, second andthird elements as well as each element of the first, second and thirdelements.

Features of various embodiments of the present disclosure can bepartially or overall coupled to or combined with (e.g., bonded to,attached to, etc.) each other, and can be variously inter-operated witheach other and driven technically as those skilled in the art cansufficiently understand. The embodiments of the present disclosure canbe carried out independently from each other, or can be carried outtogether in co-dependent relationship.

Hereinafter, a flexible display module and an electronic devicecomprising the same according to the embodiments of the presentdisclosure will be described in detail with reference to theaccompanying drawings. In the specification, in adding referencenumerals for elements in each drawing, it should be noted that likereference numerals already used to denote like elements in otherdrawings are used for elements wherever possible. In the followingdescription, when the detailed description of the relevant knownfunction or configuration is determined to unnecessarily obscure theimportant point of the present disclosure, the detailed description willbe omitted.

FIG. 1 is a plane view illustrating an electronic device according toone embodiment of the present disclosure. FIG. 2 is a cross-sectionalview taken along line I-I′ of FIG. 1. FIG. 3 is a cross-sectional viewtaken along line II-II′ of FIG. 1. FIG. 4 illustrates a rear surface ofa flexible display module shown in FIG. 3.

Referring to FIGS. 1 to 4, the electronic device according to oneembodiment of the present disclosure can include a cover window 100, aflexible display module (unit) 300, an electronic component module(unit) 500, and a housing 700. Herein, a scale in each of the coverwindow 100, the flexible display module 300, and the housing 700 shownin FIGS. 1 to 4 can be different from a real scale, for convenience ofexplanation, whereby it is not limited to the scale shown in thedrawings.

The cover window 100 covers front and lateral surfaces of the flexibledisplay module 300, whereby the cover window 100 protects the flexibledisplay module 300 from external shock.

The cover window 100 according to one embodiment of the presentdisclosure can be formed of any one of a transparent plastic material, aglass material, or a tempered glass material. For example, the coverwindow 100 can be formed of sapphire glass or gorilla glass™, or can beformed in a deposition structure of sapphire glass and gorilla glass.According to another example, the cover window 100 can include any onematerial among PET(polyethylene terephthalate), PC(polycarbonate),PES(polyethersulfone), PEN(polyethylene napthalate), andPNB(polynorbornene). In consideration of scratch and transparency, thecover window 100 can be formed of tempered glass.

The cover window 100 according to one embodiment of the presentdisclosure can include a front portion 110 and a sidewall portion 130.

The front portion 110 can correspond to a central portion of the coverwindow 100. Further, the front portion 110 can be a transparent portionthrough which light passes and can be a central portion of the coverwindow. The front portion 110 can have a whole flat shape. For example,the front portion 110 can have a planar shape, such that a top surfaceof the front portion 110 is entirely flat. The front portion 110according to one embodiment of the present disclosure can include atleast one open portion 111 formed in an upper edge portion or lower edgeportion, at least one sensor window 113, and at least one camera window115. Further, each of the at least one open portion 111, the at leastone sensor window 113, and the at least one camera window 115 can beformed in the upper edge portion or the lower edge portion of the frontportion. Further, the open portion 111, the at least one sensor window113, and the at least one camera window 115 can be formed adjacent toone another, as illustrated in FIG. 1. The front portion 110 can beexpressed as a front window.

The at least one open portion 111 can be a hole (e.g., an aperture)which vertically penetrates through the front portion 110. For example,the at least one open portion 111 can be a hole that penetrates anentire thickness of the front portion 110. Each of the at least onesensor window 113 and the at least one camera window 115 can be acircular transparent area through which ambient light passes. In otherwords, each of the at least one sensor window 113 and the at least onecamera window 115 can be transparent to allow for light to pass therethrough.

The sidewall portion 130 can be bent in a curved-line shape with apredetermined radius of curvature from the edges of the front portion110, the edges of the front portion 110 being substantially planar, orbeing substantially flat. In other words, the sidewall portion 130 iscurved from top, bottom and two side edges of the front portion 110, andcan have a predetermined radius. For example, the sidewall portion 130can include a first sidewall which is bent from the first edge (or leftedge) of the front portion 110, a second sidewall which is bent from thesecond edge (or right edge) of the front portion 110, a third sidewallwhich is bent from the third edge (or upper edge) of the front portion110, a fourth sidewall which is bent from the fourth edge (or loweredge) of the front portion 110, and a rounding portion connected betweeneach of the first to fourth sidewalls. Accordingly, each edge of thefront portion 110 can have a wholly-curved structure by the sidewallportion 130. The sidewall portion 130 can be expressed as a lateralwindow or lateral curved window.

According as the cover window 100 has a wholly-curved 4-side bendingstructure, it is possible to realize a good design in the electronicdevice, and to reduce a bezel width in each of horizontal and verticaldirections of the electronic device.

Additionally, the cover window 100 can further include a design layer(or decoration layer) prepared in the edge portion. The design layer isprinted at least one time on the edge of a rear surface (or backsurface) of the cover window 100 confronting the flexible display module300 so that it is possible to cover a non-display area on which an imageis not displayed in the electronic device. In this case, the designlayer can be formed in the edges of the front portion 110 except theopen portion 111, the sensor window 113 and the camera window 115. Thatis, the design layer can be provided any edge of the front portion 110,but can be omitted the at least one open portion 111, the at least onesensor window 113, and the at least one camera window 115.

Selectively, the cover window 100 according to one embodiment of thepresent disclosure can be formed in a plate shape comprising only thefront portion 110. In this case, the aforementioned sidewall portion 130is omitted. In other words, the entirety of the cover window 100 canhave a planar shape, and the cover window 100 can be provided without acurved sidewall portion 130.

The flexible display module 300 can be a flexible display module of aflat display device. For the following description of the presentdisclosure, it is assumed that the flexible display module 300 is aflexible light emitting display module.

The flexible display module 300 is connected with the rear surface (orback surface) of the cover window 100 so that it is possible to displayan image or to sense a user's touch onto the cover window 100. Theflexible display module 300 can be bonded to a rear surface of the frontportion 110 of the cover window 100. For example, the flexible displaymodule 300 can be bonded to the rear surface of the front portion 110 ofthe cover window 100 by a direct bonding process using a module bondingmember 200, as illustrated in FIGS. 2 and 3. Herein, the module bendingmember 200 can include pressure sensitive adhesive (PSA), opticallyclear adhesive (OCA), or optically clear resin (OCR). The module bondingmember 200 can be expressed as a transparent adhesive member.

The flexible display module 300 according to one embodiment of thepresent disclosure can include a display portion 300 a, a first bendingdisplay portion 300 b, and a second bending display portion 300 c.

The display portion 300 a can be configured to display an image on thefront portion 110 of the cover window 100. The first bending displayportion 300 b, which is bent in shape of curved surface from the firstedge of the display portion 300 a, enables to display an image on thecurved surface of the first sidewall in the sidewall portion 130 of thecover window 100. The second bending display portion 300 c, which isbent in shape of curved surface from the second edge of the displayportion 300 a, enables to display an image on the curved surface of thesecond sidewall in the sidewall portion 130 of the cover window 100.That is, the flexible display module 300 can be configured to displayimages on each of the front portion 110 of the cover window and thesidewall portion 130 of the cover window. For example, an image can bedisplay on each of the first, second, third and fourth sidewall portionsof the sidewall portion 130 (the left edge, right edge, upper edge, andthe lower edge of the sidewall portion 130). Alternatively, an image canbe displayed on less than all of the first, second, third and fourthsidewall portions of the sidewall portion 130. Selectively, it ispossible to omit the first bending display portion 300 b and the secondbending display portion 300 c. In this case, the display portion 300 aof the flexible display module 300 can be overlapped with the frontportion 110 of the cover window 100, however, can be not overlapped withthe sidewall portion 130.

The flexible display module 300 according to one embodiment of thepresent disclosure can include a flexible display panel 310 includingthe display portion 300 a, a panel bending portion 300 d and a displaypad portion DPP, a display driving circuit portion 330 having a flexiblecircuit board 335 connected with the display pad portion DPP and thedisplay driving circuit portion 330 being disposed in a rear surface ofthe flexible display panel 310, and an electrostatic shielding member350 configured to cover the panel bending portion 300 d of the flexibledisplay panel 310. That is, the electrostatic shielding member 350 cancover the panel bending portion 300 d of the flexible display panel 310.

The flexible display panel 310 can be configured to display an image oneach of the display portion 300 a, the first bending display portion 300b, and the second bending display portion 300 c, or can display an imageonly on the display portion 300 a. Further, the flexible display panel310 can be configured to display an image on one or more of the displayportion 300 a, the first bending display portion 300 b, and the secondbending display portion 300 c. The flexible display panel 310 accordingto one embodiment of the present disclosure can include a flexiblesubstrate 311, a pixel array 312, a gate driving circuit GDC, thedisplay pad portion DPP, an encapsulation portion 313, a touch electrodeportion 315, a touch pad portion TPP, a functional film 317, a firstback plate BP1, a second back plate BP2, and a bending maintenancemember 318.

The flexible substrate 311 can be defined as a base substrate of theflexible display panel 310. That is, the flexible substrate 311 can be abase substrate of the flexible display panel 310. The flexible substrate311 according to one embodiment of the present disclosure can include aplastic material with flexibility, for example, opaque or coloredpolyimide (PI). In other words, the flexible substrate 311 can beelastically deformable, and can include an elastically deformableplastic material. The flexible substrate 311 according to anotherembodiment of the present disclosure can be formed in a thin film of aglass material having flexibility/elasticity.

The pixel array 312 according to one embodiment of the presentdisclosure is formed on the display portion 300 a, the first bendingdisplay portion 300 b and the second bending display portion 300 cdefined in the flexible substrate 311, whereby an image can be displayedon each of the display portion 300 a, the first bending display portion300 b and the second bending display portion 300 c. Alternatively, animage can be displayed on less than each of the display portion 300 a,the first bending display portion 300 b and the second bending displayportion 300 c.

The pixel array 312 can include a plurality of pixels which are preparedin a pixel area defined by signal lines on the flexible substrate 311,and the plurality of pixels are configured to display an image inaccordance with a signal supplied to the signal lines. The signal linescan include a gate line, a data line and a pixel driving power sourceline.

Each of the plurality of pixels can include a pixel circuit layercomprising a driving thin film transistor prepared in the pixel area, ananode electrode electrically connected with the driving thin filmtransistor, an emission device layer formed on the anode electrode, anda cathode electrode electrically connected with the emission devicelayer.

The driving thin film transistor is prepared in a transistor area ofeach pixel area defined on the flexible substrate 311, and the drivingthin film transistor can include a gate electrode, a gate insulatingfilm, a semiconductor layer, a source electrode and a drain electrode.Herein, the semiconductor layer of the thin film transistor can includesilicon of a-Si, poly-Si, or low-temperature poly-si, or can include anoxide such as Indium-Gallium-Zinc-Oxide (IGZO).

The anode electrode is prepared as a pattern shape in an opening areadefined in each pixel area, and is electrically connected with thedriving thin film transistor.

The emission device layer according to one embodiment of the presentdisclosure can include an organic light emitting device formed on theanode electrode. The organic light emitting device can be configured toemit the same colored light by each pixel, for example, white coloredlight by each pixel, or can be configured to emit the different coloredlight by each pixel, for example, red colored light, green coloredlight, or blue colored light by each pixel.

The emission device layer according to another embodiment of the presentdisclosure can include a micro light emitting diode device electricallyconnected with the anode electrode and the cathode electrode. The microlight emitting diode device can be a light emitting diode realized in anintegrated circuit (IC) or chip, wherein the micro light emitting diodedevice can include a first terminal electrically connected with theanode electrode, and a second terminal electrically connected with thecathode electrode.

The cathode electrode can be connected with an emission device of theemission device layer prepared for each pixel area in common.

The gate driving circuit GDC can be formed in the first edge and/orsecond edge of the flexible substrate 311 so that the gate drivingcircuit GDC can be connected with one end and/or the other end in eachgate signal line prepared on the flexible substrate 311. The gatedriving circuit GDC can generate a gate signal in response to a gatecontrol signal supplied through the display pad portion DPP, and cansupply the generated gate signal to each of the plurality of gate lines.The gate driving circuit GDC can be a gate embedded circuit formed for aprocess of manufacturing the thin film transistor of the pixel, but notlimited to this type.

The display pad portion DPP can include a plurality of pad electrodesprepared at one edge (or one-sided non-display area) of the flexiblesubstrate 311 which is apart from one side of the pixel array 312. Eachof the plurality of pad electrodes can be electrically connected withthe gate driving circuit GDC and the signal line of the pixel array 312through a link line disposed in a panel bending portion 300 d betweenthe display pad portion DPP and one side of the pixel array 312.

The encapsulation portion 313 can be formed on the flexible substrate311 while being configured to surround the pixel array 312 so that it ispossible to prevent oxygen or moisture from being permeated into theemission device layer of the pixel array 312. The encapsulation portion313 according to one embodiment of the present disclosure can be formedin a multi-layered structure obtained by alternately depositing anorganic material layer and an inorganic material layer. Herein, theinorganic material layer prevents oxygen or moisture from beingpermeated into the emission device layer of the pixel array 312. And,the organic material layer can be formed in a relatively large thicknessin comparison to the inorganic material layer so that the organicmaterial layer can cover particles which might be generated during amanufacturing process. For example, the encapsulation portion 313 caninclude a first inorganic film, an organic film on the first inorganicfilm, and a second inorganic film on the organic film. In this case, theorganic film can be defined as a particle cover layer.

The touch electrode portion 315 is disposed on the encapsulation portion313, wherein the touch electrode portion 315 serves as a touch sensorcapable of sensing a user's touch on the cover window 100.

The touch electrode portion 315 according to one embodiment of thepresent disclosure can include a touch electrode layer disposed on theencapsulation portion 313 overlapped with the pixel array 312, and adielectric layer configured to cover the touch electrode layer.Selectively, the touch electrode portion 315 can be provided on a touchbuffer layer configured to cover the encapsulation portion 313. Forexample, the touch electrode layer can include a plurality of touchdriving electrodes disposed at fixed intervals on the encapsulationportion 313 overlapped with the pixel array 312, and a plurality oftouch sensing electrodes electrically insulated from the touch drivingelectrodes. The touch sensing electrodes can be disposed in the samelayer as the touch driving electrodes, or can be displayed in thedifferent layer from the touch driving electrodes with the dielectriclayer interposed in-between.

The touch electrode portion 315 according to another embodiment of thepresent disclosure can be substituted by a capacitive touch panelgenerally known to one of ordinary skill in the art. In this case, thetouch panel can be attached onto the encapsulation portion 313 by theuse of a transparent adhesive member 314. Herein, the transparentadhesive member 314 can include a pressure sensitive adhesive (PSA), anoptically clear adhesive (OCA) or an optically clear resin (OCR).

The touch pad portion TPP according to one embodiment of the presentdisclosure can include a plurality of touch pad electrodes which aredisposed in one edge of the touch electrode portion 315 provided in oneedge (or upper edge) of the flexible substrate 311 and are electricallyconnected with the touch electrode portion 315. The plurality of touchpad electrodes can be connected with the touch sensing electrodes andtouch driving electrodes through a plurality of touch routing lines in aone-to-one correspondence. The touch pad portion TPP can be overlappedwith the link line disposed on the flexible substrate 311.

The touch pad portion TPP according to another embodiment of the presentdisclosure can be disposed in the other edge of the touch electrodeportion 315 provided in the other edge of the flexible substrate 311,and can be connected with the touch sensing electrodes and touch drivingelectrodes through the plurality of touch routing lines in a one-to-onecorrespondence.

If the touch electrode portion 315 is substituted by the touch panel,the touch pad portion TPP can be disposed in one edge of the touch panelor the other edge of the touch panel, and can be connected with thetouch sensing electrodes and touch driving electrodes through theplurality of touch routing lines in a one-to-one correspondence.

The functional film 317 is attached onto the touch electrode portion 315by the use of film adhesive member 316, and can be attached to the rearsurface (or back surface) of the cover window 100 by the use of a modulebonding member 200. Herein, the film adhesive member 316 can include apressure sensitive adhesive (PSA), an optically clear adhesive (OCA) oran optically clear resin (OCR).

The functional film 317 according to one embodiment of the presentdisclosure can include a reflection preventing layer (or reflectionpreventing film) configured to prevent a reflection of ambient light soas to improve contrast ratio and outdoor visibility for an imagedisplayed on the flexible display panel 310. For example, the reflectionpreventing layer can include a circular polarizing layer (or circularpolarizing film) configured to prevent ambient light being incidentthrough the cover window 100 from being reflected on the thin filmtransistor and/or lines disposed in the pixel array 312 and beingadvanced toward the cover window 100.

The functional film 317 can further include a barrier layer (or barrierfilm) configured to firstly prevent a permeation of moisture or oxygen,wherein the barrier layer can be formed of a material with low moisturepermeation, for example, polymer.

Also, the functional film 317 can further include a light path controllayer (or light path control film) configured to control a path of lightemitted from the pixel array 312 to the cover window 100. The light pathcontrol layer can have a deposition structure obtained by alternatelydepositing a high refraction layer and a low refraction layer, whereby apath of light being provided from the pixel array 312 can be changed, tothereby minimize a color shift in accordance with a viewing angle. Thatis, a high refraction layer can be first deposited, followed by a lowerrefraction layer, and this pattern of deposition can be repeated to formthe light path control layer. Alternatively, the low refraction layercan be first deposited, followed by the high refraction layer, and thisalternate pattern of deposition can be repeated.

Selectively, the functional film 317 can be disposed between the touchelectrode portion 315 and the encapsulation portion 313. In this case,the touch electrode portion 315 can be attached to the cover window 100by the use of module bonding member 200.

The first back plate BP1 is attached to the rear surface (or backsurface) of the flexible substrate 311 being overlapped with the pixelarray 312, whereby the rear surface (or back surface) of the flexiblesubstrate 311 being overlapped with the pixel array 312 is maintained ina plane state.

The second back plate BP2 is attached to one edge of the rear surface(or back surface) of the flexible substrate 311 being overlapped withthe display pad portion DPP, whereby the one edge of the rear surface(or back surface) of the flexible substrate 311 is maintained in a planestate.

A link line area of the flexible substrate 311, which is provided withlink lines while being overlapped with an open portion between the firstback plate BP1 and the second back plate BP2, can be defined as thepanel bending portion 300 d. Further, the panel bending portion 300 canbe bent with a predetermined radius of curvature. That is, the panelbending portion 300 d of the flexible substrate 311 is not supported ina plane state by the first back plate BP1 and the second back plate BP2,whereby the panel bending portion 300 d of the flexible substrate 311can be freely bent. Accordingly, the panel bending portion 300 d of theflexible substrate 311 is bent to surround one lateral surface of thefirst back plate BP1 confronting the second back plate BP2, whereby thedisplay pad portion DPP can be overlapped with one rear edge of thefirst back plate BP1. Thus, the flexible display module 300 is bent toprovide a predetermined radius of curvature in the panel bending portion300 d of the flexible substrate 311, to thereby realize a small bezelwidth.

The bending maintenance member 318 can be disposed between the firstback plate BP1 and the second back plate BP2 being overlapped with eachother with respect to a thickness direction Z of the flexible displaypanel 310. The bending maintenance member 318 fixes the second backplate BP2 disposed in the rear surface of the first back plate BP1 toone rear edge of the first back plate BP1 in accordance with the bendingof the flexible substrate 311 so that it is possible to maintain thebending state and bending shape of the flexible substrate 311.

One surface (or front surface) of the bending maintenance member 318 canbe attached to the first back plate BP1. And, the other surface (or rearsurface) of the bending maintenance member 318 can be attached to thesecond back plate BP2.

The bending maintenance member 318 according to one embodiment of thepresent disclosure can include a bar-shaped metal material structure, aplastic-material structure, or a double-sided tape. Selectively, thebending maintenance member 318 according to one embodiment of thepresent disclosure can include a bending guide portion 318 a which isprotruding toward the panel bending portion 300 d of the flexiblesubstrate 311. An outer lateral surface of the bending guide portion 318a can have a curved-line shape which enables bending of the panelbending portion 300 d of the flexible substrate 311 in a curved-lineshape. For example, the bending guide portion 318 a can have a curvedshape, thus enabling the panel bending portion 300 d to be bent.

The flexible display panel 310 according to one embodiment of thepresent disclosure can further include a cover layer (or micro coverlayer) 319 for covering the panel bending portion 300 d of the flexiblesubstrate 311.

The cover layer 319 can cover the panel bending portion 300 d of theflexible substrate 311 and be disposed between the encapsulation portion313 and the display pad portion DPP.

The cover layer 319 can include a polymer material, wherein the coverlayer 319 can be coated on to the panel bending portion 300 d of theflexible substrate 311 so as to cover the link line between theencapsulation portion 313 and the display pad portion DPP. The coverlayer 319 protects the link line from external shock, and also preventsmoisture permeation into the link line. Especially, when the panelbending portion 300 d of the flexible substrate 311 is bent in acurved-line shape with a predetermined radius of curvature, the coverlayer 319 is provided to position the link line on a neutral plane. Thatis, when the panel bending portion 300 d of the flexible substrate 311is bent with a predetermined radius of curvature, the neutral plane, inwhich each of a tensile force and a compressive force becomes ‘0’(zero), exists between the flexible substrate 311 and the cover layer319. Accordingly, the cover layer 319 can include a material whoseelastic coefficient is relatively higher than that of the flexiblesubstrate 311 so that the link lines can be positioned in the neutralplane. Thus, the link lines are positioned in the neutral plane betweenthe cover layer 319 and the flexible substrate 311. That is, when thepanel bending portion 300 d of the flexible substrate 311 is bent in acurved-line shape, a bending stress of ‘0’ is applied to the link linespositioned in the neutral line between the cover layer 319 and theflexible substrate 311, whereby the link lines can be bent without anydamage caused by the bending stress.

The flexible display module 300 according to one embodiment of thepresent disclosure can further include a conductive heat dissipatingportion 320 combined with (e.g., bonded to, attached to, etc.) the rearsurface (or back surface) of the flexible display panel 310.

The conductive heat dissipating portion 320 can be attached to the rearsurface (or back surface) of the first back plate BP1. The conductiveheat dissipating portion 320 protects the flexible display panel 310from shock, and radiates heat of the flexible display panel 310. Thatis, the conductive heat dissipating portion 320 can be configured toabsorb heat from the flexible display panel 310, to radiate the heataway from the flexible display panel 310, and thus can be construed as aheat sink. The conductive heat dissipating portion 320 can be expressedas a heat dissipating tape, a heat dissipating cushion tape, aconductive heat dissipating tape, a heat dissipating sheet, a heatdissipating ground sheet, or a conductive heat dissipating sheet.

The conductive heat dissipating portion 320 according to one embodimentof the present disclosure can be attached to the entire rear surface ofthe first back plate BP1. In this case, as one surface (or frontsurface) of the bending maintenance member 318 is attached to theconductive heat dissipating portion 320, a distance between the firstback plate BP1 and the second back plate BP2 is increased so that it ispossible to reduce a bending repulsion force by the panel bendingportion 300 d of the flexible substrate 311 being bent in a curved-lineshape. Alternatively, the conductive heat dissipating portion 320according to another embodiment of the present disclosure can beattached to less than the entire rear surface of the first back plateBP1.

The conductive heat dissipating portion 320 according to one embodimentof the present disclosure can be attached to the remaining portions ofthe rear surface of the first back plate BP1 except for an arrangementarea for the bending maintenance member 318. In this case, one surface(or front surface) of the bending maintenance member 318 is directlyattached to the first back plate BP1 from which some portions of theconductive heat dissipating portion 320 are removed, whereby a thicknessof the flexible display panel 310 can be reduced.

The conductive heat dissipating portion 320 according to one embodimentof the present disclosure can include a heat dissipating member 321, acushion member 323 and an adhesive member 325, or any combinationthereof.

The heat dissipating member 321 can include a heat dissipating layerhaving a metal material with a relatively high thermal conductivity. Theheat dissipating layer of the heat dissipating member 321 according toone embodiment of the present disclosure can include a metal layercomprising copper (Cu). The heat dissipating member 321 according toanother embodiment of the present disclosure can include a metal layercomprising copper (Cu), and a graphite layer coated onto the metallayer. The heat dissipating member 321 can provide a heat dissipatingfunction, a ground function, and a protection function for protectingthe rear surface of the flexible display panel 310.

The cushion member 323 can include a foam tape or foam pad connectedwith a front surface of the heat dissipating member 321. The cushionmember 323 can absorb a shock, including vibrational shock and othermechanical shock.

The adhesive member 325 can be connected with a front surface of thecushion member 323. The adhesive member 325 can include an unevensurface structure (or embossing structure) formed in its surface. Theuneven surface structure of the adhesive member 325 prevents bubblesfrom being generated between the first back plate BP1 and the conductiveheat dissipating member 320 for an attachment process between the firstback plate BP1 and the conductive heat dissipating portion 320, so thatit is possible to omit a deformation process for removing bubblesgenerated between the first back plate BP1 and the conductive heatdissipating portion 320.

The display driving circuit portion 330 can be connected with thedisplay pad portion DPP of the flexible display panel 310, whereby thedisplay driving circuit portion 330 can be disposed in the rear surfaceof the flexible display panel 310. The display driving circuit portion330 can display an image on the pixel array 312 of the flexible displaypanel 310, and can sense a user's touch through the touch electrodeportion 315 of the flexible display panel 310.

The display driving circuit portion 330 according to one embodiment ofthe present disclosure can include a panel flexible circuit film 331, adriving integrated circuit 333, a flexible circuit board 335, and atouch flexible circuit film 337.

The panel flexible circuit film 331 can be electrically connected withthe display pad portion DPP prepared in the flexible substrate 311,while being disposed in the rear surface of the flexible display panel310. The panel flexible circuit film 331 can be attached to the displaypad portion DPP prepared in the flexible substrate 311 through the useof film attachment process using an anisotropic conductive film. Forexample, the panel flexible circuit film 331 can be a chip on film.

The driving integrated circuit 333 can be mounted on the panel flexiblecircuit film 331 disposed in the rear surface of the flexible displaypanel 310. The driving integrated circuit 333 according to oneembodiment of the present disclosure can be mounted on the panelflexible circuit film 331 by a chip bonding process or surface mountingprocess. The driving integrated circuit 333 can generate a data signaland a gate control signal on the basis of timing synchronized signal andvideo data supplied from an external host driving system (or hostdriving circuit), can supply the data signal to the data line of eachpixel through the display pad portion DPP, and can supply the gatecontrol signal to the gate driving circuit GDC. The driving integratedcircuit 333 can be disposed in the rear surface of the flexible displaypanel 310.

Alternatively, the driving integrated circuit 333 is not mounted on thepanel flexible circuit film 331, and is mounted (or bounded onto) on achip mounting area defined in the flexible substrate 311, whereby thedriving integrated circuit 333 can be electrically connected with thedisplay pad portion DPP, and can be connected with the signal line ineach of the pixel array 312 and the gate driving circuit GDC disposed onthe flexible substrate 311. In this case, the panel flexible circuitfilm 331 can relay a signal transport between the display pad portionDPP and the host driving system, or can be omitted.

The flexible circuit board 335 can be electrically connected with thepanel flexible circuit film 331 in the rear surface of the flexibledisplay panel 310. The flexible circuit board 335 according to oneembodiment of the present disclosure can be electrically connected witha pad electrode portion prepared in the panel flexible circuit film 331by a film attachment process using an anisotropic conductive film, andcan be overlapped with the first back plate BP1 of the flexible displaypanel 310. The flexible circuit board 335 can provide the timingsynchronized signal and video data, supplied from the host drivingsystem, to the driving integrated circuit 333 through the display padportion DPP, and can provide voltages which are needed for driving thepixel array 312, the gate driving circuit, and the driving integratedcircuit 333. The flexible circuit board 335 can be expressed as a mainflexible printed circuit board or a display driving circuit board.

The flexible circuit board 335 according to one embodiment of thepresent disclosure can include a circuit body portion 335 a, a boardopening portion 335 b, first circuit components 335 c 1, second circuitcomponents 335 c 2, an extension line portion 335 d, and a boardconnector 335 e, as illustrated in FIG. 4.

The circuit body portion 335 a can be electrically connected with thepad electrode portion prepared in the panel flexible circuit film 331.The circuit body portion 335 a can include a board pad portion BPPdisposed in one surface confronting the conductive heat dissipatingportion 320. The board pad portion BPP can be electrically connectedwith the pad electrode portion prepared in the panel flexible circuitfilm 331 by a film attachment process using an anisotropic conductivefilm. For example, the circuit body portion 335 a can have a rectangularshape.

Another edge, of the circuit body portion 335 a can be fixed to theconductive heat dissipating portion 320 by the use of adhesive tape 336.In this case, one side of the adhesive tape 336 can be adhered to theanother edge of the circuit body portion 335 a, and the other side ofthe adhesive tape 336 can be adhered to the conductive heat dissipatingportion 320. Selectively, the adhesive tape 336 can electrically connecta ground terminal prepared in the circuit body portion 335 a with theconductive heat dissipating portion 320. In this case, the adhesive tape336 can be a conductive tape comprising a conductive layer being inelectrical contact with each of the conductive heat dissipating portion320 and the ground terminal prepared in the circuit body portion 335 a.

The board opening portion 335 b can be provided in the circuit bodyportion 335 a, while being adjacent to the board pad portion BPP. Forexample, the board opening portion 335 b can penetrate through thecircuit body portion 335 a and can have a size enabling an insertion ofthe driving integrated circuit 333 mounted on the panel flexible circuitfilm 331. The board opening portion 335 b can be expressed as anintegrated circuit insertion hole. Thus, in an embodiment of the presentdisclosure, the driving integrated circuit 333 is inserted into theboard opening portion 335 b, whereby the flexible circuit board 335 andthe driving integrated circuit 333 are disposed while being overlappedwith each other, to thereby reduce an occupying area of the displaydriving circuit portion 330 in the flexible display module 300, andfurthermore, to reduce a thickness of the flexible display module 300.

Alternatively, it is possible to omit the board opening portion 335 bfrom the electronic device in accordance with a circuit arrangementspace prepared in the rear surface of the flexible display module 300.Also, the board pad portion BPP can be disposed in one edge of thecircuit body portion 335 a being adjacent to the panel flexible circuitfilm 331. In this case, the driving integrated circuit 333 can bemounted on the panel flexible circuit film 331, which is not overlappedwith the flexible circuit board 335. For example, the driving integratedcircuit 333 can be mounted on the panel flexible circuit film 331, wherethe flexible circuit film 331 is disposed between the end of theflexible substrate 311 and the flexible circuit board 335.

The first circuit components 335 c 1 can be mounted on the first edgearea (or left edge area) of the circuit body portion 335 a with respectto a first direction X. For example, the first circuit components 335 c1 can be mounted on the first edge area of the circuit body portion 335a being adjacent to one side of the board opening portion 335 b. Thefirst circuit components 335 c 1 according to one embodiment of thepresent disclosure can include at least one among a resistor, acapacitor, an inductor, and an integrated circuit.

The second circuit components 335 c 2 can be mounted on the second edgearea (or right edge area) of the circuit body portion 335 a with respectto the first direction X. For example, the second circuit components 335c 2 can be mounted on the second edge area of the circuit body portion335 a being adjacent to the other side of the board opening portion 335b. The second circuit components 335 c 2 according to one embodiment ofthe present disclosure can include at least one among a resistor, acapacitor, an inductor, and an integrated circuit.

The extension line portion 335 d can extend by a predetermined lengthfrom the other edge of the circuit body portion 335 a. For example, theextension line portion 335 d can have a linear shape or non-linearshape. The length and shape of the extension line portion 335 d can beset in accordance with a position of the host driving system (or hostdriving board) disposed in the rear surface of the flexible displaymodule 300. In other words, the extension line portion 335 d can sizedand shaped to allow for connection to the host driving system throughthe board connector 335 e.

The board connector 335 e can be provided in the end of the extensionline portion 335 d and can be electrically connected with the hostdriving system.

The flexible circuit board 335 according to one embodiment of thepresent disclosure can further include at least one first ground pad GP1disposed in the circuit body portion 335 a, and at least one secondground pad GP2 disposed in the circuit body portion 335 a. The at leastone first ground pad GP1 can be spaced from the at least one secondground pad GP2.

The at least one first ground pad GP1 can be prepared in the first edgearea of the circuit body portion 335 a, while being adjacent to thefirst circuit components 335 c 1. The at least one first ground pad GP1can be electrically connected with the conductive heat dissipatingportion 320.

The at least one second ground pad GP2 can be prepared in the secondedge area of the circuit body portion 335 a, while being adjacent to thesecond circuit components 335 c 2. The at least one second ground padGP2 can be electrically connected with the conductive heat dissipatingportion 320.

The flexible circuit board 335 according to one embodiment of thepresent disclosure can further include a touch connector 335 f. Thetouch connector 335 f can be mounted on the circuit body portion 335 a,and can be electrically connected with the touch flexible circuit film337.

The touch flexible circuit film 337 can be electrically connected withthe touch pad portion TPP prepared in the flexible display panel 310 bya film attachment process using an anisotropic conductive film, and canbe electrically connected with the touch connector 335 f mounted on theflexible circuit board 335. The touch flexible circuit film 337 cansupply a touch driving signal, which is provided from the flexiblecircuit board 335, to the touch electrodes through the touch pad portionTPP. Further, the touch flexible circuit film 337 can supply a signalcorresponding to a capacitance change in the touch electrodes to theflexible circuit board 335 through the touch pad portion TPP.

The touch flexible circuit film 337 according to one embodiment of thepresent disclosure can include a touch bonding portion attached to thetouch pad portion TPP, a touch connector terminal 337 b connected withthe touch connector 335 f of the flexible circuit board 335, a filmbending portion 337 a between the touch bending portion and the touchconnector terminal 337 b, and a circuit portion between the film bendingportion 337 a and the touch connector terminal 337 b. The film bendingportion 337 a can be bent in a curved-line shape to surround the panelbending portion 300 d of the flexible substrate 311. In this case, thetouch flexible circuit film 337 can have uneven surface portions causedby a bending repulsive force of the film bending portion 337 a. In orderto prevent the uneven surface portions of the touch flexible circuitfilm 337, at least some portions of the film bending portion 337 a canhave a relatively smaller thickness in comparison to that of the circuitportion.

Alternatively, the touch flexible circuit film 337 can be connected withthe host driving system instead of the touch connector 335 f of theflexible circuit board 335. In this case, it is possible to omit thetouch connector 335 f mounted on the flexible circuit board 335.

The electrostatic shielding member 350 can be disposed adjacent to theopen portion 111 prepared in the cover window 100, so that it ispossible to minimize or prevent the panel bending portion 300 d of theflexible display panel 310 and the circuit components disposed adjacentto the panel bending portion 300 d from being damaged by staticelectricity introduced through the open portion 111.

The electrostatic shielding member 350 can cover the panel bendingportion 300 d of the flexible display panel 310. The electrostaticshielding member 350 can be disposed to cover the panel bending portion300 d of the flexible display panel 310, which is bent in a curved-lineshape (e.g., has a curved shape). For example, the electrostaticshielding member 350 can be attached to the cover layer 319 configuredto cover the panel bending portion 300 d of the flexible substrate 311.

The electrostatic shielding member 350 according to one embodiment ofthe present disclosure can include a metal layer configured to cover thepanel bending portion 300 d of the flexible display panel 310, and aconductive adhesion layer combined with (e.g., bonded to, attached to,etc.) the metal layer and adhered to the panel bending portion 300 d ofthe flexible display panel 310. In this case, the metal layer caninclude copper or aluminum, and the conductive adhesion layer caninclude a conductive acryl adhesive.

In one example, the electrostatic shielding member 350 can beelectrically connected with the conductive heat dissipating portion 320in the rear surface of the flexible display panel 310. In this case, theelectrostatic shielding member 350 can be electrically connected withthe heat dissipating member 321 of the conductive heat dissipatingmember 320 through a conductive strap member 370. However, multipleconductive strap members can be used, as illustrated in FIG. 4. Theconductive strap member 370 according to one embodiment of the presentdisclosure can electrically connect at least one of one edge portion andanother edge portion of the electrostatic shielding member 350 with theconductive heat dissipating portion 320. For example, the conductivestrap member 370 can include a conductive single-sided tape. As theconductive heat dissipating portion 320 is electrically connected withthe electrostatic shielding member 350 through the conductive strapmember 370, it is possible to remove static electricity introduced tothe electrostatic shielding member 350.

In another example, the electrostatic shielding member 350 can beelectrically connected with the ground pad of the flexible circuit board335 in the rear surface of the flexible display panel 310. In this case,the electrostatic shielding member 350 can be electrically connectedwith the ground pad of the flexible circuit board 335 through aconductive connection member. The conductive connection member accordingto embodiment of the present disclosure can electrically connect atleast one of one edge portion and another edge portion of theelectrostatic shielding member 350 with the ground pad of the flexiblecircuit board 335. For example, the conductive connection member caninclude a conductive single-sided tape. According as the ground pad ofthe flexible circuit board 335 is electrically connected with theelectrostatic shielding member 350 through the conductive strap member370, it is possible to remove static electricity introduced to theelectrostatic shielding member 350.

The electrostatic shielding member 350 can be attached to the panelbending portion 300 d of the flexible display panel 310 adjacent to theopen portion 111 which is prepared in the cover window 100, so that itis possible to minimize or prevent the panel bending portion of theflexible display panel 310 and the circuit components disposed adjacentto the bending portion from being damaged by static electricityintroduced through the open portion 111 of the cover window 100.

The electronic component module 500 can be provided in the open portion111 prepared in the cover window 100. For example, the electroniccomponent module 500 (unit) can be accommodated in the housing 700overlapped with the open portion 111 prepared in the cover window 100,and can be inserted into the open portion 111. Accordingly, theelectronic component module 500 vertically penetrates through the coverwindow 100 through the open portion 111, whereby the electroniccomponent module 500 can be exposed to the front portion 110 of thecover window 100.

The electronic component module 500 according to one embodiment of thepresent disclosure can include a speaker module configured to output asound. The speaker can be configured to output any type of sound. Forexample, if the electronic device is a smart phone, a mobile terminal,or the like, the speaker module can be a receiver configured to output atelephone sound, or any other sound.

The electronic component module 500 according to another embodiment ofthe present disclosure can include a peripheral circuit module (orauxiliary unit) of the electronic device exposed to the external throughthe cover window 100. For example, if the electronic device is a smartphone, the peripheral circuit module can include a fingerprint sensor, atouch pressure sensor or a home button.

The electronic device according to one embodiment of the presentdisclosure can further include at least one sensor module (unit) whichis accommodated in the housing 700 while being overlapped with at leastone sensor window 113 prepared in the cover window 100, and a cameramodule (unit) having at least one camera unit which is accommodated inthe housing 700, while being overlapped with at least one camera window115. In other words, the electronic device according to one embodimentof the present disclosure can further include at least one sensor modulewhich is accommodated in the housing 700, each sensor module beingoverlapped with a corresponding sensor window 113 prepared in the coverwindow 100. Further, the electronic device module can further comprise acamera module having at least one camera unit which is accommodated inthe housing 700, each camera unit being overlapped with a correspondingcamera window 115. Herein, the sensor module can include an illuminationsensor, a proximity sensor, a motion sensor or an RGB sensor.

The housing 700 can accommodate the flexible display module 300, and cansupport the cover window 100. For example, the housing 700 is combinedwith (e.g., bonded to, attached to, etc.) the sidewall portion 130 ofthe cover window 100, to thereby support the cover window 100.

The housing 700 according to one embodiment of the present disclosurecan further include a rear housing 710 configured to cover the rearsurface of the flexible display module 300 under the condition that acircuit receiving space 701 is interposed in-between, and a lateralhousing 730 configured to support the cover window 100.

The rear housing 710 is disposed in the outermost rear surface of theelectronic device, wherein the rear housing 710 can include a plasticmaterial, a metal material, or a glass material. For example, the rearhousing 710 can include a glass material with a color coating layer.Alternatively, the rear housing 710 can include a transparent glassmaterial without a color coating layer.

The lateral housing 730 according to one embodiment of the presentdisclosure is disposed in the outermost lateral surface of theelectronic device, wherein the lateral housing 730 can be bent from theedge of the rear housing 710 and be connected with the sidewall portion130 of the cover window 100. In other words, the lateral housing 730 canhave a curved shape from the edge of the rear housing 710 and beconnected with the sidewall portion 130 of the cover window 100.

The lateral housing 730 according to another embodiment of the presentdisclosure can be formed of a plastic material, a metal material, or aglass material, and can be disposed in the edge of the sidewall portion130 of the cover window 100.

The circuit receiving space 701 is prepared between the rear surface ofthe flexible display module 300 and the rear housing 710, wherein thehost driving system, memory and battery can be accommodated in thecircuit receiving space 701.

The electronic device according to one embodiment of the presentdisclosure can further include a middle frame 900.

The middle frame 900 is disposed in the circuit receiving space 701 ofthe housing 700, and the middle frame 900 can support circuit componentsdisposed in the circuit receiving space 701. The middle frame 900 cansupport the cover window 100. The middle frame 900 according to oneembodiment of the present disclosure can include a middle plate 910 anda middle sidewall 930.

The middle plate 910, which is disposed between the rear surface of theflexible display module 300 and the rear housing 710, can support thecircuit components disposed in the circuit receiving space 701.

The middle sidewall 930, which is vertically connected with a lateralsurface of the middle plate 910, can support the sidewall portion 130 ofthe cover window 100.

Selectively, the lateral housing 730 of the housing 700 can besubstituted by the middle sidewall 930 of the middle frame 900. In thiscase, the middle sidewall 930 of the middle frame 900 can be disposedbetween the sidewall portion 130 of the cover window 100 and the edge ofthe rear housing 710, whereby it is possible to omit the lateral housing730 of the housing 700.

The flexible display module 300 according to one embodiment of thepresent disclosure and the electronic device comprising the same includethe electrostatic shielding member 350 which is disposed adjacent to theopen portion 111 prepared in the cover window 100 so that it is possibleto prevent the panel bending portion 300 d of the flexible display panel310 and the circuit components disposed adjacent to the panel bendingportion 300 d from being damaged by static electricity introducedthrough the open portion 111, to thereby improve reliability in thestatic electricity.

FIGS. 5A to 5C illustrate embodiments of the electrostatic shieldingmember according to the present disclosure.

Referring to FIG. 5A in connection with FIG. 3, the electrostaticshielding member 350 according to one embodiment of the presentdisclosure can cover all the panel bending portion 300 d of the flexibledisplay panel 310, which is bent in the curved-line shape while beingadjacent to the open portion 111 prepared in the cover window 100. Forexample, the electrostatic shielding member 350 can be formed in arectangular shape, and can be attached to the cover layer 319 disposedon the panel bending portion 300 d of the flexible display panel 310.The electrostatic shielding member 350 according to one embodiment ofthe present disclosure prevents the static electricity being introducedtoward the panel bending portion 300 d of the flexible display panel 310through the open portion 111 of the cover window 100, to thereby protectthe link lines disposed on the panel bending portion 300 d of theflexible display panel 310 from the static electricity.

Referring to FIG. 5B in connection with FIG. 3, the electrostaticshielding member 350 according to another embodiment of the presentdisclosure can cover the non-display area NDA of a plane shape disposedbetween the display portion 300 a and the panel bending portion 300 d,and the panel bending portion 300 d of the flexible display panel 310which is bent in the curved-line shape. For example, the electrostaticshielding member 350 is formed in shape of “T”, and can be attached tothe cover layer 319 disposed on the panel bending portion 300 d of theflexible display panel 310 and the non-display area NDA of the planeshape being adjacent to the panel bending portion 300 d. Theelectrostatic shielding member 350 according to another embodiment ofthe present disclosure prevents the static electricity from beingintroduced toward the panel bending portion 300 d of the flexibledisplay panel 310 through the open portion 111 of the cover window 100,to thereby protect the link lines disposed on the panel bending portion300 d of the flexible display panel 310 and the non-display area NDAhaving a plane shape being adjacent to the panel bending portion 300 dof the flexible display panel 310 from the static electricity. In otherwords, the electrostatic shielding member 350 protects the link linesdisposed on the panel bending portion 300 d of the flexible displaypanel 310 and the non-display area NDA from static electricity. Thenon-display area NDA can be substantially planar, however, thenon-display area NDA is not limited to a planar shape. Further, thenon-display area NDA can be located directly adjacent to the panelbending portion 300 d of the flexible display panel 310, and can belocated above the panel bending portion 300 d of the flexible displaypanel 310.

Referring to FIG. 5C in connection with FIG. 3, the electrostaticshielding member 350 according to another embodiment of the presentdisclosure can be formed in a lightning rod structure (e.g., can beformed to at least one triangular shaped edge portion at one edgethereof), and can be configured to cover the panel bending portion 300 dof the flexible display panel 310 which is bent in the curved-lineshape. For example, the electrostatic shielding member 350 according toanother embodiment of the present disclosure can be formed in a lineshape having one edge with at least one apex portion/triangular shapededge portion 350 a, and can be attached to the cover layer 319 disposedon the panel bending portion 300 d of the flexible display panel 310.One edge portion of the electrostatic shielding member 350 can bedisposed adjacent to the non-display area NDA of the plane shape anddisposed between the display portion 300 a and the panel bending portion300 d. The electrostatic shielding member 350 according to anotherembodiment of the present disclosure prevents the static electricityintroduced to the panel bending portion 300 d of the flexible displaypanel 310 through the open portion 111 of the cover window 100, so thatit is possible to protect the link lines and the circuit disposed on thepanel bending portion 300 d of the flexible display panel 310 fromstatic electricity. Especially, in case of the electrostatic shieldingmember 350 according to another embodiment of the present disclosure,one edge of the electrostatic shielding member 350 is adjacent to theopen portion 111 of the cover window 100 and has the lightning rodstructure with at least one apex portion 350 a to facilitate easiercollection of the static electricity introduced through the open portion111 of the cover window 100.

Additionally, one edge portion of the electrostatic shielding member 350can be peeled off from the panel bending portion 300 d due to thelowering of adhesion strength in accordance with a temperature and acurved-line shape of the panel bending portion 300 d. In this case, atleast one apex portion 350 a, which is peeled off from the panel bendingportion 300 d, is positioned more adjacent (e.g., closer) to the openportion 111 of the cover window 100 so that it enables the improvedcollection efficiency of the static electricity introduced through theopen portion 111 of the cover window 100. Accordingly, the remainingportions of the electrostatic shielding member 350 except its one edgecan be attached to the panel bending portion 300 d.

FIG. 6 illustrates the rear surface of the flexible display module shownin FIG. 3. FIG. 7 is a cross-sectional view taken along line of FIG. 6,which is obtained by additionally providing a cover member 390 to theflexible display module 300.

Referring to FIGS. 3, 4, 6 and 7, the flexible display module 300according to one embodiment of the present disclosure can furtherinclude a cover member 390 which is attached to the rear surface of theflexible display panel 310 and is configured to restrict lifting of theflexible circuit board 335. In other words, the cover member 390 securesthe flexible circuit board 335 via its connection with the flexibledisplay panel.

The cover member 390 can be attached to the rear surface of the flexibledisplay panel 310 while being overlapped with the flexible circuit board335.

The cover member 390 according to one embodiment of the presentdisclosure can be disposed in one edge portion of the flexible circuitboard 335, and is attached to the conductive heat dissipating portion320 of the flexible display panel 310, whereby the cover member 390 cancover each of the board opening portion 335 b, the first circuitcomponents 335 c 1, the second circuit components 335 c 2, the firstground pad GP1, and the second ground pad GP2 of the flexible circuitboard 335, and also can cover the driving integrated circuit 333inserted into the board opening portion 335 b of the flexible circuitboard 335.

As the cover member 390 is attached to the conductive heat dissipatingportion 320 while being configured to cover one edge portion of theflexible circuit board 335, it is possible to prevent or restrict thelifting of the flexible circuit board 335. Further, the cover memberprevents or restricts thermal deformation of the flexible circuit board335. Also, the cover member 390 can cover the driving integrated circuit333 mounted on the panel flexible circuit film 331 or the flexiblesubstrate 311 so that it is possible to protect the driving integratedcircuit 333 from shock, and/or to prevent direct contact between thedriving integrated circuit 333 and other structures. And, the covermember 390 can electrically connect each of the first and second groundpads GP1 and GP2 prepared in the flexible circuit board 333 to theconductive heat dissipating portion 320.

FIG. 8 is a plane view illustrating the cover member shown in FIG. 6,and FIG. 9 is a cross sectional view illustrating the cover member shownin FIG. 8.

Referring to FIGS. 6 to 9, the cover member 390 according to oneembodiment of the present disclosure can include a cover body portion391, a cover adhesion portion 393, and a bridge 395.

The cover body portion 391 can be overlapped with the flexible circuitboard 335. The cover body portion 391 according to one embodiment of thepresent disclosure can be overlapped with one edge of the flexiblecircuit board 335 being adjacent to the display pad portion DPP of theflexible display panel 310. Accordingly, the cover body portion 391 cancover the board opening portion 335 b of the flexible circuit board 335,the first and second circuit components 335 c 1 and 335 c 2, the firstand second ground pads GP1 and GP2, and the driving integrated circuit333 which is inserted into the board opening portion 335 b of theflexible circuit board 335. The cover body portion 391 can cover any oneedge of the flexible circuit board 335, whereby the cover body portion391 can be expressed as a cover area.

A central portion CP of the cover body portion 391 can be overlappedwith a central portion of the driving integrated circuit 333, but thecentral portion CP is not limited to this structure. Within an allowancein the consideration of a manufacturing process of the cover member 390and an attachment process of the cover member 390, the central portionCP of the cover body portion 391 can be overlapped with the centralportion of the driving integrated circuit 333. For example, the centralportion CP of the cover body portion 391 and the central portion of thedriving integrated circuit 333 can be overlapped with each other withina range of ±0.4 mm. In other words, the central portion CP of the coverbody portion 391 can be is spaced from the central portion of thedriving integrated circuit 333 up to 0.4 mm. Further, the centralportion CP of the cover body portion 391 can be vertically aligned withthe central portion of the driving integrated circuit 333.

The cover body portion 391 according to one embodiment of the presentdisclosure can have a first length L1 which is parallel to a firstdirection X (or length direction), and a first width W1 which isparallel to a second direction Y (or width direction) beingperpendicular to the first direction X. The first length L1 of the coverbody portion 391 can be relatively longer than a length of the flexiblecircuit board 335 being parallel to the first direction X.

With respect to the first direction X, the cover body portion 391 caninclude a middle portion disposed on the flexible circuit board 335, andan edge portion which is inclined between the middle portion and thecover adhesion portion 393. The middle portion of the cover body portion391 can be configured to cover any one edge of the flexible circuitboard 335, and also can be supported by the first and second circuitcomponents 335 c 1 and 335 c 2 disposed in one edge of the flexiblecircuit board 335. The edge portion of the cover body portion 391 can beinclined or bent in a curved-line shape to surround one edge or bothedges of the flexible circuit board 335. In other words, the edgeportion of the cover body portion 391 can have a curved shapesurrounding one or a plurality of edges of the flexible circuit board335.

With respect to the second direction Y (or width direction), the coverbody portion 391 can include a first edge portion EP1 disposed in alower side of a central line CL, and a second edge portion EP2 disposedin an upper side of the central line CL. In this case, in comparison tothe second edge portion EP2, first edge portion EP1 of the cover bodyportion 391 can be relatively close to the display pad portion DPP ofthe flexible display panel 310.

The cover adhesion portion 393 can be provided in plurality, connectedwith both sides of the cover body portion 391, and attached to the rearsurface of the flexible display panel 310. In other words, the coveradhesion portion 393 can be separately provided on different portions ofthe cover body portion 391 for attaching the cover body portion 391 tothe rear surface of the flexible display panel 310. The cover adhesionportion 393 with a predetermined length and width can protrude (orextend) from both sides of the cover body portion 391, and the coveradhesion portion 393 can be attached to the conductive heat dissipatingportion 320 of the flexible display panel 310. The cover adhesionportion 393 is attached to the conductive heat dissipating portion 320,whereby the cover adhesion portion 393 can be expressed as an attachmentarea or fixing area.

The cover adhesion portion 393 according to one embodiment of thepresent disclosure can include a first adhesion portion 393 a and asecond adhesion portion 393 b.

The first adhesion portion 393 a is connected with one side (or leftside) of the cover body portion 391, and can be attached to theconductive heat dissipating portion 320 of the flexible display panel310. The second adhesion portion 393 b is connected with the other side(or right side) of the cover body portion 391, and can be attached tothe conductive heat dissipating portion 320 of the flexible displaypanel 310.

Each of the first adhesion portion 393 a and the second adhesion portion393 b according to one embodiment of the present disclosure can includea second length L2 which is parallel to the first direction X, and afirst width W1 which is the same as the first width W1 of the cover bodyportion 391. For example, the second length L2 in each of the firstadhesion portion 393 a and the second adhesion portion 393 b can be setto be 1.5 mm or more than 1.5 mm in consideration of a stable adhesionbetween the cover member 390 and the conductive heat dissipating portion320. In order words, the second length L2 in each of the first adhesionportion 393 a and the second adhesion portion 393 b can be altered toallow for strong and reliable adhesion between the cover member 390 andthe conductive heat dissipating portion 320.

The bridge 395 is disposed between the cover body portion 391 and thecover adhesion portion 393, whereby the cover body portion 391 and thecover adhesion portion 393 can be connected with each other through theuse of bridge 395. With respect to a second direction Y (or widthdirection), the bridge 395 can connect both ends of the other edgeportion EP2 of the cover body portion 391 with the cover adhesionportion 393. The bridge 395 distributes a deforming force or a forcecausing uneven surface portions in the flexible circuit board 335, tothereby prevent a separation of the cover adhesion portion 393.

For example, with respect to the second direction Y, the first edgeportion EP1 of the cover body portion 391 is separated from the coveradhesion portion 393, and the second edge portion EP2 of the cover bodyportion 391 is connected with the cover adhesion portion 393, wherebysome of the deforming force (or force causing uneven surface portions)of the flexible circuit board 335 can be transmitted to the second edgeportion EP2 of the cover body portion 391, and the remaining of thedeforming force (or force causing uneven surface portions) of theflexible circuit board 335 can be transmitted to the first edge portionEP1 of the cover body portion 391. Accordingly, some of the deformingforce (or force causing uneven surface portions) of the flexible circuitboard 335 can be transmitted to the cover adhesion portion 393 throughthe bridge 395 so that it is possible to prevent the separation of thecover adhesion portion 393 by the distribution of the deforming force ofthe flexible circuit board 335. And, the bridge 395 partially separatesthe cover body portion 391 and the cover adhesion portion 393 from eachother so that it is possible to independently maintain an adhesionbetween the cover body portion 391 and ground pads GP1 and GP2 preparedin the flexible circuit board 335 and an adhesion between the conductiveheat dissipating portion 320 and the cover adhesion portion 393.

The bridge 395 according to one embodiment of the present disclosure canhave a second width W2, which is smaller than the first W1 of the coverbody portion 391, with respect to a width direction being parallel tothe second direction Y. For example, the second width W2 of the bridge395 can be more than the half of the first width W1 of the cover bodyportion 391, and can be less than the first width W1 of the cover bodyportion 391. Herein, if the second width W2 of the bridge 395 is lessthan the half of the first width W1 of the cover body portion 391, thebridge 395 can be cut by the uneven surface portions (or deformation) ofthe flexible circuit board 335. The bridge 395 can be formed by acutting process for forming vertical slits 396 a and 396 b along adirection being parallel to the second direction Y in the cover member390 between the cover body portion 391 and the cover adhesion portion393.

The bridge 395 according to one embodiment of the present disclosure caninclude a first bridge 395 a configured to connect the cover bodyportion 391 and the first adhesion portion 393 a with each other, and asecond bridge 395 b configured to connect the cover body portion 391 andthe second adhesion portion 393 b with each other.

The first bridge 395 a can be connected between the first adhesionportion 393 a and one side (or left side) of the other edge portion EP2of the cover body portion 391. For example, a connection structurebetween the first adhesion portion 393 a and the first bridge 395 a canhave a two-dimensional structure of “

” shape.

The second bridge 395 b can be connected with the second adhesionportion 393 b and the other side (or right side) of the other edgeportion EP2 of the cover body portion 391. For example, a connectionstructure between the second adhesion portion 393 b and the secondbridge 395 b can have a two-dimensional structure of “

” shape.

With respect to the first direction X, each a width Ws1 of the firstbridge 395 a (or vertical slit) and a width Ws2 of the second bridge 395b can be set to be more than a height H1 between an upper surface of theflexible circuit board 335 and the conductive heat dissipating portion320. In other words, the height H1 is a height between an upper surfaceof the flexible circuit board 335 and an upper surface of the conductiveheat dissipating portion 320. Herein, if each in the width Ws1 of thefirst bridge 395 a and the width Ws2 of the second bridge 395 b is setto be less than the height H1 between the upper surface of the flexiblecircuit board 335 and the conductive heat dissipating portion 320, eachof the first adhesion portion 393 a and the second adhesion portion 393b can be separated from the conductive heat dissipating portion 320 bythe uneven surface portions (or deformation) of the flexible circuitboard 335.

The cover member 390 according to one embodiment of the presentdisclosure can further include a cover protruding portion 394.

The cover protruding portion 394 can protrude from another side of thecover body portion 391 and can be overlapped with the upper periphery ofthe board opening portion 335 b of the flexible circuit board 335 sothat it is possible to prevent the board opening portion 335 b of theflexible circuit board 335 from being exposed by an attachment processerror of the cover member 390.

The cover member 390 according to one embodiment of the presentdisclosure can include a conductive tape 390 a and an insulating tape390 b.

The conductive tape 390 a can include the cover body portion 391 and thecover adhesion portion 393. For example, the conductive tape 390 a caninclude a base film, a metal layer attached to a rear surface of thebase film by the use of adhesion layer, and a conductive adhesion layerformed on a rear surface of the metal layer.

The insulating tape 390 b can be configured to include the cover bodyportion 391 and can be attached to a rear surface of the conductive tape390 a. For example, the insulating tape 390 b can be attached to theremaining portions except the portions, which are overlapped with thefirst and second ground pads GP1 and GP2 prepared in the flexiblecircuit board 335, in the cover body portion 391 of the conductive tape390 a. The insulating tape 390 b is disposed in the cover body portion391 of the conductive tape 390 a, whereby the metal layer disposed inthe cover body portion 391 of the conductive tape 390 a is electricallyinsulated from the circuit components 335 c 1 and 335 c 2 mounted on theflexible circuit board 335.

As the insulating tape 390 b is not attached to the metal layer disposedin the cover adhesion portion 393 of the conductive tape 350 a, themetal layer disposed in the cover adhesion portion 393 of the conductivetape 390 a can be electrically connected with the conductive heatdissipating portion 320 by the use of a conductive adhesion layer. Asthe insulating tape 390 b is not attached to some of the metal layerdisposed in the first and second edges of the cover body portion 391 ofthe conductive tape 390 a, some of the metal layer disposed in the firstand second edges of the cover body portion 391 of the conductive tape390 a can be electrically connected with each of the first and secondground pads GP1 and GP2 prepared in the flexible circuit board 335through the use of a conductive adhesion layer. Further, each of thefirst and second ground pads GP1 and GP2 of the flexible circuit board335 can be electrically connected with the conductive heat dissipatingportion 320 through the conductive tape 390 a disposed in each of thecover adhesion portion 393 and the cover body portion 391 of the covermember 390.

The cover member 390 according to one embodiment of the presentdisclosure includes the cover body portion 391 configured to cover theflexible circuit board 335, and the cover adhesion portion 393 attachedto the conductive heat dissipating portion 320, so that it is possibleto prevent or restrict the lifting of the flexible circuit board 335,and also to prevent or minimize the separation of the cover adhesionportion 393 by a deforming force (or force causing the uneven surfaceportions) of the cover body portion 391 in accordance with the unevensurface portions of the flexible circuit board 335. Also, in case of thecover member 390 according to one embodiment of the present disclosure,the force (or deforming force) causing the uneven surface portions inthe flexible circuit board 335 is distributed by the use of bridge 395(or slit 396) disposed between the cover body portion 391 and the coveradhesion portion 393 so that it is possible to prevent the separation ofthe cover adhesion portion 393 from the conductive heat dissipatingportion 320. Also, it is possible to independently maintain the adhesionbetween the cover body portion 391 and the ground pads GP1 and GP2prepared in the flexible circuit board 335 and the adhesion between theconductive heat dissipating portion 320 and the cover adhesion portion393. Thus, according to the present disclosure, the lifting (orfloating) of the flexible circuit board 335 can be prevented orrestricted through the use of cover member 390, the circuit components335 c 1 and 335 c 2 mounted on the flexible circuit board 335 can beprotected, and the ground pads GP1 and GP2 prepared in the flexiblecircuit board 335 can be grounded to the conductive heat dissipatingportion 320 disposed in the rear surface of the flexible display panel310.

Additionally, in case of the cover member 390 according to oneembodiment of the present disclosure, the first and second adhesionportions 393 a and 393 b of the cover adhesion portion 393 can have athird width W4, which is larger than the first width W1 of the coverbody portion 391, with respect to a width direction being parallel tothe second direction Y, as shown in FIG. 10. That is, the first andsecond adhesion portions 393 a and 393 b can have the third width W4,which is more than the first width W1 of the cover body portion 391,with respect to the width direction being parallel to the seconddirection Y. In this case, an adhesion area between the conductive heatdissipating portion 320 and each of the first and second adhesionportions 393 a and 393 b is increased so that it is possible to minimizethe separation of each of the first and second adhesion portions 393 aand 393 b by the uneven surface portions (or deformation) of theflexible circuit board 335.

FIG. 11 is a rear view illustrating the flexible display module so as toexplain another embodiment of the cover member shown in FIG. 6, and FIG.12 illustrates the cover member shown in FIG. 11, in which the covermember and the conductive strap member shown in FIG. 6 are formed as onebody.

Referring to FIGS. 11 and 12 in connection with FIG. 7, the cover member390 according to another embodiment of the present disclosure canfurther include an electrostatic path member 399. The electrostatic pathmember 399 can be provided in plurality and can extend from one side ofthe cover member 390.

The electrostatic path member 399 protrudes (or extends) from at leastone of one side and the other side of one edge portion EP1 of the coverbody portion 391, and can be electrically connected with theelectrostatic shielding member 350. For example, the electrostatic pathmember 399 extends from each of one side of the other side of one edgeportion EP1 of the cover body portion 391 in the second direction Y ortoward the electrostatic shielding member 350, and can be electricallyconnected with each of one side of the other side of the electrostaticshielding member 350. The electrostatic path member 399 electricallyconnects the electrostatic shielding member 350 with the conductive heatdissipating portion 320, whereby it is possible to form an electrostaticpath for transmitting the static electricity, which is induced in theelectrostatic shielding member 350, to the conductive heat dissipatingportion 320. Thus, the static electricity introduced through the openportion of the cover window can flow in the conductive heat dissipatingportion 320 via the electrostatic shielding member 350 disposed on thepanel bending portion 300 d of the flexible display panel 310, and theelectrostatic path member 339, the cover body portion 391 and the coveradhesion portion 393 included in the cover member 390.

The cover member 390 according to another embodiment of the presentdisclosure can prevent or restrict the lifting of the flexible circuitboard 335, and also can transmit the static electricity, which isintroduced to the electrostatic shielding member 350 through the openportion of the cover window, to the conductive heat dissipating portion320. Accordingly, the electronic device including the cover member 390according to another embodiment of the present disclosure canelectrically connect the electrostatic shielding member 350 with theconductive heat dissipating portion 320 through the cover member 390without the conductive strap member shown in FIG. 6.

Meanwhile, if the cover member 390 includes the electrostatic pathmember 399, one edge portion EP1 of the cover member 390 is fixed to theelectrostatic shielding member 350 through the electrostatic path member399 so that it is possible to prevent or minimize the uneven surfaceportions of the cover body portion 391 in accordance with the unevensurface portions of the flexible circuit board 335. Also, it can beunnecessary to provide the bridge 395 and the slit 396 disposed betweenthe cover body portion 391 and the cover adhesion portion 393 andconfigured to prevent the separation of the cover adhesion portion 393in accordance with the uneven surface portions of the cover body portion391, whereby the cover adhesion portion 393 of the cover member 390 canbe directly connected with both lateral surfaces of the cover bodyportion 391, to thereby omit the bridge 395 and the slit 396 disposedbetween the cover body portion 391 and the cover adhesion portion 393.

The flexible display module according to the embodiment of the presentdisclosure and the electronic device comprising the same can bedescribed as follows.

According to an embodiment of the present disclosure, a flexible displaymodule comprises a flexible display panel including a display portion, apanel bending portion and a display pad portion; a flexible circuitboard connected with the display pad portion and disposed in a rearsurface of the flexible display panel; and an electrostatic shieldingmember configured to cover the panel bending portion of the flexibledisplay panel.

According to one or more embodiments of the present disclosure, theflexible display module can further include a conductive heatdissipating portion combined with (e.g., bonded to, attached to, etc.)the rear surface of the flexible display panel, wherein theelectrostatic shielding member can be electrically connected with theconductive heat dissipating portion in the rear surface of the flexibledisplay panel.

According to one or more embodiments of the present disclosure, theflexible display module can further include a conductive strap memberconfigured to electrically connect the electrostatic shielding memberand the conductive heat dissipating portion with each other.

According to one or more embodiments of the present disclosure, thepanel bending portion of the flexible display panel can be bent in acurved-line shape, and the electrostatic shielding member can cover thepanel bending portion of the flexible display panel which is bent in thecurved-line shape.

According to one or more embodiments of the present disclosure, theflexible display panel can include a non-display area of a plane shapebetween the display portion and the panel bending portion, the panelbending portion of the flexible display panel can be bent in thecurved-line shape, and the electrostatic shielding member can be formedin shape of a “T”, and can be configured to cover the non-display areaof the plane shape and the panel bending portion of the flexible displaypanel bent in the curved-line shape.

According to one or more embodiments of the present disclosure, theelectrostatic shielding member can include at least one apex portion.

According to one or more embodiments of the present disclosure, theflexible display panel can include a non-display area of a plane shapedisposed between the display portion and the panel bending portion, thepanel bending portion of the flexible display panel can be bent in acurved-line shape from the non-display area of the plane shape, theelectrostatic shielding member can cover the panel bending portion ofthe flexible display panel which is bent in the curved-line shape, andat least one apex portion of the electrostatic shielding member can bedisposed on the panel bending portion of the flexible display panelbeing adjacent to the non-display area of the plane shape.

According to one or more embodiments of the present disclosure, theflexible display panel can include a flexible substrate having thedisplay portion, the panel bending portion and the display pad portion;a first back plate combined with (e.g., bonded to, attached to, etc.) arear surface of the flexible substrate which is overlapped with thedisplay portion; a second back plate combined with (e.g., bonded to,attached to, etc.) the rear surface of the flexible substrate which isoverlapped with the display pad portion; and a bending maintenancemember disposed between the first back plate and the second back plate,wherein the conductive heat dissipating portion is combined with (e.g.,bonded to, attached to, etc.) a rear surface of the first back plate.

According to one or more embodiments of the present disclosure, theflexible display panel can further include a cover layer configured tocover the panel bending portion of the flexible substrate, and theelectrostatic shielding member can be attached to the cover layer.

According to one or more embodiments of the present disclosure, theconductive heat dissipating portion can include a heat dissipatingmember; a cushion member combined with (e.g., bonded to, attached to,etc.) the heat dissipating member; and an adhesion member combined with(e.g., bonded to, attached to, etc.) the cushion member and combinedwith (e.g., bonded to, attached to, etc.) the rear surface of the firstback plate, and the heat dissipating member can be electricallyconnected with the electrostatic shielding member.

According to one or more embodiments of the present disclosure, theflexible display module can further include a cover member attached tothe rear surface of the flexible display panel and configured torestrict lifting of the flexible circuit board, wherein the cover membercan include a cover body portion overlapped with the flexible circuitboard; and a cover adhesion portion connected with both sides of thecover body portion and attached to the conductive heat dissipatingportion.

According to one or more embodiments of the present disclosure, thecover member can further include a slit provided between the coveradhesion portion and the cover body portion.

According to one or more embodiments of the present disclosure, thecover adhesion portion can have a width which is identical to or largerthan a width of the cover body portion with respect to a width directionof the cover member.

According to one or more embodiments of the present disclosure, theflexible circuit board can include at least one ground pad, the coverbody portion can be attached to the at least one ground pad, and thecover adhesion portion can be attached to the conductive heatdissipating portion.

According to one or more embodiments of the present disclosure, thecover member can include a conductive tape having the cover body portionand the cover adhesion portion; and an insulating tape attached to arear surface of the conductive tape disposed on the flexible circuitboard and configured to have the cover body portion.

According to one or more embodiments of the present disclosure, thecover member can further include an electrostatic path member extendingfrom the cover body portion and electrically connected with theelectrostatic shielding member.

According to one or more embodiments of the present disclosure, theelectrostatic shielding member can include a metal layer; and aconductive adhesion layer combined with (e.g., bonded to, attached to,etc.) the metal layer and attached to the panel bending portion of theflexible display panel.

According to the embodiment of the present disclosure, an electronicdevice comprises a cover window having an open portion; a flexibledisplay module combined with (e.g., bonded to, attached to, etc.) thecover window; and a housing configured to support the cover window andto accommodate the flexible display module, wherein the flexible displaymodule comprises a flexible display panel including a display portion, apanel bending portion and a display pad portion; a flexible circuitboard connected with the display pad portion and disposed in a rearsurface of the flexible display panel; and an electrostatic shieldingmember configured to cover the panel bending portion of the flexibledisplay panel.

According to one or more embodiments of the present disclosure, theelectronic device can further include an electronic component moduledisposed in the open portion of the cover window, wherein the coverwindow can include a front portion configured to include the openportion adjacent to a panel bending portion of a flexible display panel,and configured to cover the flexible display module; and a sidewallportion bent from an edge of the front portion.

According to one or more embodiments of the present disclosure, theelectronic component module can include a speaker module (unit).

In addition to the effects of the present disclosure as mentioned above,additional advantages and features of the present disclosure will beclearly understood by those skilled in the art from the abovedescription of the present disclosure.

It will be apparent to those skilled in the art that the presentdisclosure described above is not limited by the above-describedembodiments and the accompanying drawings and that varioussubstitutions, modifications, and variations can be made in the presentdisclosure without departing from the spirit or scope of thedisclosures. Consequently, the scope of the present disclosure isdefined by the accompanying claims, and it is intended that allvariations or modifications derived from the meaning, scope, andequivalent concept of the claims fall within the scope of the presentdisclosure.

The various embodiments described above can be combined to providefurther embodiments. All of the U.S. patents, U.S. patent applicationpublications, U.S. patent applications, foreign patents, foreign patentapplications and non-patent publications referred to in thisspecification and/or listed in the Application Data Sheet areincorporated herein by reference, in their entirety. Aspects of theembodiments can be modified, if needed to employ concepts of the variouspatents, applications and publications to provide yet furtherembodiments.

These and other changes can be made to the embodiments in light of theabove-detailed description. In general, in the following claims, theterms used should not be construed to limit the claims to the specificembodiments disclosed in the specification and the claims, but should beconstrued to include all possible embodiments along with the full scopeof equivalents to which such claims are entitled. Accordingly, theclaims are not limited by the disclosure.

What is claimed is:
 1. A flexible display module comprising: a flexibledisplay panel including a display portion, a panel bending portion and adisplay pad portion; a flexible circuit board connected with the displaypad portion of the flexible display panel and disposed in a rear surfaceof the flexible display panel; and an electrostatic shielding membercovering the panel bending portion of the flexible display panel.
 2. Theflexible display module according to claim 1, further comprising aconductive heat dissipating portion attached to the rear surface of theflexible display panel, wherein the electrostatic shielding member iselectrically connected with the conductive heat dissipating portion atthe rear surface of the flexible display panel.
 3. The flexible displaymodule according to claim 2, further comprising a conductive strapmember electrically connecting the electrostatic shielding member to theconductive heat dissipating portion.
 4. The flexible display moduleaccording to claim 2, wherein the panel bending portion of the flexibledisplay panel has a curved-line shape.
 5. The flexible display moduleaccording to claim 2, wherein the flexible display panel includes anon-display area having a plane shape, the non-display area locatedbetween the display portion and the panel bending portion, the panelbending portion of the flexible display panel has a curved-line shape,and the electrostatic shielding member has a “T” shape, and covers thenon-display area and the panel bending portion of the flexible displaypanel.
 6. The flexible display module according to claim 2, wherein theelectrostatic shielding member includes at least one apex portion. 7.The flexible display module according to claim 6, wherein the flexibledisplay panel includes a non-display area having a plane shape, thenon-display area being disposed between the display portion and thepanel bending portion, the panel bending portion of the flexible displaypanel has a curved-line shape from the non-display area, theelectrostatic shielding member covers the panel bending portion of theflexible display panel, and at least one apex portion of theelectrostatic shielding member is disposed on the panel bending portionof the flexible display panel and the at least one apex portion of theelectrostatic shielding member is adjacent to the non-display area ofthe plane shape.
 8. The flexible display module according to claim 2,wherein the flexible display panel includes: a flexible substrate havingthe display portion, the panel bending portion and the display padportion; a first back plate attached to a rear surface of the flexiblesubstrate, the first back plate being overlapped with the displayportion; a second back plate attached to the rear surface of theflexible substrate, the second back plate being overlapped with thedisplay pad portion; and a bending maintenance member disposed betweenthe first back plate and the second back plate, and wherein theconductive heat dissipating portion is attached to a rear surface of thefirst back plate.
 9. The flexible display module according to claim 8,wherein the flexible display panel further includes a cover layercovering the panel bending portion of the flexible substrate, and theelectrostatic shielding member is attached to the cover layer.
 10. Theflexible display module according to claim 8, wherein the conductiveheat dissipating portion includes: a heat dissipating member; a cushionmember attached to the heat dissipating member; and an adhesion memberattached to the cushion member and attached to the rear surface of thefirst back plate, and the heat dissipating member is electricallyconnected with the electrostatic shielding member.
 11. The flexibledisplay module according to claim 2, further comprising a cover memberattached to the rear surface of the flexible display panel andconfigured to restrict lifting of the flexible circuit board, whereinthe cover member includes: a cover body portion overlapping the flexiblecircuit board; and a cover adhesion portion connected with two sides ofthe cover body portion and attached to the conductive heat dissipatingportion.
 12. The flexible display module according to claim 11, whereinthe cover member further includes a slit provided between the coveradhesion portion and the cover body portion.
 13. The flexible displaymodule according to claim 12, wherein the cover adhesion portion has awidth identical to or larger than a width of the cover body portion in awidth direction of the cover member.
 14. The flexible display moduleaccording to claim 11, wherein the flexible circuit board includes atleast one ground pad, the cover body portion is attached to the at leastone ground pad, and the cover adhesion portion is attached to theconductive heat dissipating portion.
 15. The flexible display moduleaccording to claim 14, wherein the cover member further includes: aconductive tape comprising a first portion of the cover body portion andthe cover adhesion portion; and an insulating tape attached to a rearsurface of the conductive tape and disposed on the flexible circuitboard, the insulating tape comprising a second portion of the cover bodyportion, wherein the second portion of the cover body portion isdifferent than the first portion of the cover body portion.
 16. Theflexible display module according to claim 14, wherein the cover memberfurther includes an electrostatic path member extending from the coverbody portion, the electrostatic path member being electrically connectedwith the electrostatic shielding member.
 17. The flexible display moduleaccording to claim 16, wherein the electrostatic shielding memberincludes: a metal layer; and a conductive adhesion layer attached to themetal layer and attached to the panel bending portion of the flexibledisplay panel.
 18. An electronic device comprising: a cover windowhaving an open portion; the flexible display module according to claim1, the flexible display module being attached to the cover window; and ahousing configured to support the cover window and to accommodate theflexible display module.
 19. The electronic device according to claim18, further comprising an electronic component module disposed in theopen portion of the cover window, wherein the cover window includes: afront portion including the open portion, the front portion beingadjacent to the panel bending portion of the flexible display panel, andconfigured to cover the flexible display module; and a sidewall portionhaving a bent shape from an edge of the front portion.
 20. Theelectronic device according to claim 19, wherein the electroniccomponent module includes a speaker module.